the law is that when stopped by a popo, for any or no reason at all, you're obliged to give your name. If it's a stop and searchie, you have to give them NOTHING. If for a suspected offence, then you have to provide your name, address, and DOB. If you're in posession of a vehicle they can stop you at any time and do not have to give a reason. failing to stop is a criminal offence in its own right.
specials have the same powers as police. PCSO's do not (they cannot stop and search for example).
http://www.homeoffice.gov.uk/police/powers/
the law is that when stopped by a popo, for any or no reason at all, you're obliged to give your name. If it's a stop and searchie, you have to give them NOTHING. If for a suspected offence, then you have to provide your name, address, and DOB. If you're in posession of a vehicle they can stop you at any time and do not have to give a reason. failing to stop is a criminal offence in its own right.
specials have the same powers as police. PCSO's do not (they cannot stop and search for example).